Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Margaret Rl Dann, RN, MSN, FPMHNP-BC

Individual provider Registered Nurse · NPI 1891028213

Margaret Rl Dann, RN, MSN, FPMHNP-BC is a Nurse Practitioner in Greenbrae, California. Graduated from University of California, San Francisco School of Medicine in 2011, 15 years ago. Practices with City and County of San Francisco, a 369-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
15
Trained at
University of California, San Francisco School of Medicine
Licensed in
CA
In the registry since
2009
Specialties on file
2
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.

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Practice location Address checks out

250 Bon Air Rd Ste 2432
Greenbrae, CA 94904-1702 Not confirmed with CMS for 12 years — call before visiting
Phone: (415) 473-2538
Fax: (415) 473-6033
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 21121 (CA)
Registered Nurse Taxonomy 163W00000X · Licence 755079 (CA)

Record details

NPI number1891028213
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , MSN , FPMHNP-BC
Sole proprietorYes
NPI enumeratedSeptember 16, 2009
Last updated in NPPESOctober 2, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice City And County Of San Francisco — 369 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients18
Services billed 58 a service is one billed item, such as a visit, a test or a procedure
Average patient age57

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at City and County of San Francisco

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 369 clinicians in the practice; 12 are shown here.

Other providers in Greenbrae